CNM vs BLDR

For growth investors, Core & Main, Inc.

(CNM) is the stronger pick with 2. 8% revenue growth year-over-year, versus -7. 4% for Builders FirstSource, Inc. (BLDR). Core & Main, Inc. (CNM) offers the better valuation at 16. 7x trailing P/E (21. 7x forward), making it the more compelling value choice. Analysts rate Core & Main, Inc. (CNM) a "Buy" — based on 14 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Core & Main, Inc.

(CNM) is the cheapest at 16. 7x versus Builders FirstSource, Inc. at 20. 4x. On forward P/E, Builders FirstSource, Inc. is actually cheaper at 14. 1x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Core & Main, Inc. wins at 0. 27x versus Builders FirstSource, Inc. 's 1. 78x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Core & Main, Inc.

(CNM) delivered a total return of +148. 4%, compared to +51. 8% for Builders FirstSource, Inc. (BLDR). Over 10 years, the gap is even starker: BLDR returned +614. 8% versus CNM's +148. 4%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Core & Main, Inc.

(CNM) is the lower-risk stock at 1. 12β versus Builders FirstSource, Inc. 's 1. 65β — meaning BLDR is approximately 47% more volatile than CNM relative to the S&P 500. On balance sheet safety, Core & Main, Inc. (CNM) carries a lower debt/equity ratio of 118% versus 130% for Builders FirstSource, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Core & Main, Inc.

(CNM) is pulling ahead at 2. 8% versus -7. 4% for Builders FirstSource, Inc. (BLDR). On earnings-per-share growth, the picture is similar: Core & Main, Inc. grew EPS 39. 4% year-over-year, compared to -57. 1% for Builders FirstSource, Inc.. Over a 3-year CAGR, CNM leads at 4. 8% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Core & Main, Inc.

(CNM) is the more profitable company, earning 5. 8% net margin versus 2. 9% for Builders FirstSource, Inc. — meaning it keeps 5. 8% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: CNM leads at 9. 4% versus 5. 2% for BLDR. At the gross margin level — before operating expenses — BLDR leads at 29. 0%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Core & Main, Inc. (CNM) is the more undervalued stock at a PEG of 0. 27x versus Builders FirstSource, Inc. 's 1. 78x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Builders FirstSource, Inc. (BLDR) trades at 14. 1x forward P/E versus 21. 7x for Core & Main, Inc. — 7. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for BLDR: 38. 3% to $109. 92.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

For long-horizon retirement investors, Core & Main, Inc.

(CNM) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 12), +148. 4% 10Y return). Builders FirstSource, Inc. (BLDR) carries a higher beta of 1. 65 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (CNM: +148. 4%, BLDR: +614. 8%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the Industrials sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: CNM is a small-cap deep-value stock; BLDR is a small-cap quality compounder stock. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.